Excuse my noobness, but I've had this board only for two days now and I came across this strange behaviour: I set the multiplier to 21 in the BIOS which gives cpu speed of 2800 MHz with 133 MHz bus speed. When I boot into Windows and start CPU-Z it shows the same bus speed and multiplier as in the BIOS, but after a couple minutes these values go down to 12 for the multiplier and 1600 for the cpu speed. Can you help me and explain which BIOS parameters are responsicle for automatic downclockig of the cpu?